OPERATOR’S
MANUAL
Axion / 150Z ZTR Series
20HP Zero-Turn Riders
Mfg. No.
2690715
2690716
Description
Simplicity Axion, 20HP w/ 42” Mower (CE)
Snapper 150Z, 20HP w/ 42” Mower (CE)
1734212
Revision 02
Rev. Date 4/2007
TP 100-4470-02-ZT-SN
TABLE OF CONTENTS
Safety Rules
General Operation...................................................2
Service & Adjustments
Ground Speed Control Lever Adjustment .............24
Speed Balancing Adjustment................................24
Cutting Height Adjustment ....................................24
PTO Clutch Adjustment.........................................24
Brake Adjustment..................................................25
Battery Charging...................................................25
Engine Adjustments..............................................25
Mower Deck Leveling Adjustments .......................26
Mower Belt Replacement......................................27
Transportation & Storage ........................................2
Slope Operation ......................................................3
Towed Equipment....................................................3
Children...................................................................3
Emissions................................................................3
Ignition System .......................................................3
Slope Sighting Guide ..............................................4
Service & Maintenance...........................................5
Safety & Operation Decals......................................6
Identification Numbers................................................7
Operation
Storage..................................................................28
Troubleshooting
Troubleshooting the Rider - Chart.........................29
Control Functions....................................................8
Troubleshooting the Mower - Chart.......................30
Specifications ............................................................31
Service Items .............................................................31
Lawn Care ..............................................................LC-1
General Operating Safety .......................................9
Checks before Starting..........................................10
Fuel Recommendations........................................10
Emergency Stopping.............................................11
Stopping the Rider and Engine.............................11
Starting the Engine ...............................................11
Mowing..................................................................11
Pushing the Rider by Hand ...................................11
Driving Practice.....................................................12
Mower Deck Removal & Installation......................14
Maintenance
Maintenance Schedule .........................................14
Rider Maintenance
Accessing the Engine Compartment.....................16
Clean Debris from Rider and Engine ....................16
Clean Debris from Engine Cooling Areas .............16
Check Tire Pressure..............................................16
Lubrication ............................................................17
Clean Deck & Check/Replace Mower Blades .......18
Clean the Battery & Cables...................................19
Check Rider Safety System ..................................19
Check/Adjust PTO Clutch......................................20
Engine Maintenance
Check Engine Oil Level.........................................21
Change Engine Oil................................................21
Change Engine Oil & Filter ...................................21
Service Air Filter & Pre-Cleaner............................22
Replace Spark Plug ..............................................23
NOTE: In this manual, “left” and “right” are referred to as seen from the operating position.
1
SAFETY RULES
Read these safety rules and follow them closely. Failure to obey these rules could result in loss of control
of unit, severe personal injury or death to you, or bystanders, or damage to property or equipment.
This mowing deck is capable of amputating hands and feet and throwing objects.
The triangle
in text signifies important cautions or warnings which must be followed.
19. Follow the manufacturer’s recommendations for wheel
weights or counterweights.
GENERAL OPERATION
1. Read, understand, and follow all instructions in the
manual and on the unit before starting.
20. Keep in mind the operator is responsible for accidents
occurring to other people or property.
2. Do not put hands or feet near rotating parts or under
the machine. Keep clear of the discharge opening at
all times.
21. All drivers should seek and obtain professional and
practical instruction.
22. Always wear substantial footwear and trousers.
Never operate when barefoot or wearing sandals.
23. Before using, always visually check that the blades
and blade hardware are present, intact, and secure.
Replace worn or damaged parts.
24. Disengage attachments before: refueling, removing
an attachment, making adjustments (unless the
adjustment can be made from the operator’s
position).
25. When the machine is parked, stored, or left
unattended, lower the cutting means unless a positive
mechanical lock is used.
26. Before leaving the operator’s position for any reason,
engage the parking brake, disengage the blades
(PTO), stop the engine, and remove the key.
27. To reduce fire hazard, keep the unit free of grass,
leaves, & excess oil. Do not stop or park over dry
leaves, grass, or combustible materials.
28. It is a violation of California Public Resource Code
Section 4442 to use or operate the engine on or near
any forest-covered, brush-covered, or grass-covered
land unless the exhaust system is equipped with a
spark arrester meeting any applicable local or state
laws. Other states or federal areas may have similar
laws.
29. OSHA regulations may require the use of hearing
protection when exposed to sound levels greater than
85 dBA for an 8 hour time period.
3. Only allow responsible adults, who are familiar with
the instructions, to operate the unit (local regulations
can restrict operator age).
4. Clear the area of objects such as rocks, toys, wire,
etc., which could be picked up and thrown by the
blade(s).
5. Be sure the area is clear of other people before
mowing. Stop the unit if anyone enters the area.
6. Never carry passengers.
7. Do not mow in reverse unless absolutely necessary.
Always look down and behind before and while
travelling in reverse.
8. Never direct discharge material toward anyone. Avoid
discharging material against a wall or obstruction.
Material may ricochet back toward the operator. Stop
the blade(s) when crossing gravel surfaces.
9. Do not operate the machine without the entire grass
catcher, discharge guard (deflector), or other safety
devices in place and operational.
10. Slow down before turning.
11. Never leave a running unit unattended. Always
disengage the blades (PTO), set parking brake, stop
engine, and remove keys before dismounting.
12. Disengage blades (PTO) when not mowing. Shut off
engine and wait for all parts to come to a complete
stop before cleaning the machine, removing the grass
catcher, or unclogging the discharge guard.
13. Operate the machine only in daylight or good artificial
light.
14. Do not operate the unit while under the influence of
alcohol or drugs.
CAUTION
15 Watch for traffic when operating near or crossing
roadways.
This machine produces sound levels in
excess of 85 dBA at the operator’s ear and
can cause hearing loss though extended
periods of exposure.
16. Use extra care when loading or unloading the unit
into a trailer or truck.
17. Always wear eye protection when operating this unit.
18. Data indicates that operators, age 60 years and
above, are involved in a large percentage of power
equipment-related injuries. These operators should
evaluate their ability to operate the equipment safely
enough to protect themselves and others from injury.
Wear hearing protection when operating this
machine.
TRANSPORTING AND STORAGE
1. When transporting the unit on an open trailer, make
sure it is facing forward, in the direction of travel. If
the unit is facing backwards, wind lift could damage
the unit.
3. Never store the unit (with fuel) in an enclosed poorly
ventilated structure. Fuel vapors can travel to an
ignition source (such as a furnace, water heater, etc.)
and cause an explosion. Fuel vapor is also toxic to
humans and animals.
4. Never store the unit or fuel container inside where
there is an open flame or pilot light, such as near a
water heater. Allow unit to cool before storing.
2. Always observe safe refueling and fuel handling
practices when refueling the unit after transportation
or storage.
2
SLOPE OPERATION
WARNING
Slopes are a major factor related to loss-of-control and tip-
over accidents, which can result in severe injury or death.
Operation on all slopes requires extra caution. If you cannot
back up the slope or if you feel uneasy on it, do not operate
on it.
Never operate on slopes greater than 17.6 percent
(10°) which is a rise of 3-1/2 feet (106 cm) vertically in
20 feet (607 cm) horizontally.
Select slow ground speed before driving onto slope.
Use extra caution when operating on slopes with rear-
mounted grass catchers.
Mow up and down the face of slopes, not across. Use
caution when changing directions and DO NOT
START OR STOP ON SLOPE.
Control of a walk-behind or ride-on machine sliding on a
slope will not be regained by the application of the brake.
The main reasons for loss of control are: insufficient tire
grip on the ground, speed too fast, inadequate braking, the
type of machine is unsuitable for its task, lack of awareness
of the ground conditions, incorrect hitching and load
distribution.
1. Mow up and down the face of slopes, not across.
2. Watch for holes, ruts, or bumps. Uneven terrain could
overturn the unit. Tall grass can hide obstacles.
3. Choose a slow speed so that you will not have to stop
or change speeds while on the slope.
4. Do not mow on wet grass. Tires may loose traction.
5. Avoid starting, stopping, or turning on a slope. If tires
lose traction (i.e. machine stops forward motion on a
slope), disengage the blade(s) (PTO) and drive
slowly off the slope.
CHILDREN
Tragic accidents can occur if the operator is not alert to the
presence of children. Children are often attracted to the unit
and the mowing activity. Never assume that children will
remain where you last saw them.
1. Keep children out of the mowing area and under the
watchful care of another responsible adult.
2. Be alert and turn unit off if children enter the area.
3. Before and during reverse operation, look behind and
down for small children.
4. Never carry children, even with the blade(s) off. They
may fall off and be seriously injured or interfere with
safe unit operation. Children who have been given
rides in the past may suddenly appear in the mowing
area for another ride and be run over or backed over
by the machine.
5. Never allow children to operate the unit.
6. Use extra care when approaching blind corners,
shrubs, trees, or other objects that may obscure
vision.
6. Keep all movement on slopes slow and gradual. Do
not make sudden changes in speed or direction,
which could cause the machine to rollover.
7. Use extra care while operating machines with grass
catchers or other attachments; they can affect the
stability of the unit. Do not use on steeps slopes.
8. Do not try to stabilize the machine by putting your
foot on the ground (ride-on units).
9. Do not mow near drop-offs, ditches, or
embankments. The mower could suddenly turn over if
a wheel is over the edge of a cliff or ditch, or if an
edge caves in.
10. Do not use grass catchers on steep slopes.
11. Do not mow slopes if you cannot back up them.
12. See your authorized dealer/retailer for
recommendations of wheel weights or
counterweights to improve stability.
13. Remove obstacles such as rocks, tree limbs, etc.
14. Use slow speed. Tires may lose traction on slopes
even through the brakes are functioning properly.
15. Do not turn on slopes unless necessary, and then,
turn slowly and gradually uphill, if possible. Never
mow down slopes.
EMISSIONS
1. Engine exhaust from this product contains chemicals
known, in certain quantities, to cause cancer, birth
defects, or other reproductive harm.
2. Look for the relevant Emissions Durability Period and
Air Index information on the engine emissions label.
TOWED EQUIPMENT (RIDE-ON UNITS)
IGNITION SYSTEM
1. Tow only with a machine that has a hitch designed for
towing. Do not attach towed equipment except at the
hitch point.
1. This spark ignition system complies with Canadian
ICES-002.
2. Follow the manufacturer’s recommendations for
weight limit for towed equipment and towing on
slopes. See attaching a trailer under OPERATION.
3. Never allow children or others in or on towed
equipment.
4. On slopes, the weight of the towed equipment may
cause loss of traction and loss of control.
5. Travel slowly and allow extra distance to stop.
6. Do not shift to neutral and coast down hill.
3
4
13. If the fuel tank must be drained, it should be drained
outdoors.
SERVICE AND MAINTENANCE
Safe Handling of Gasoline
1. Extinguish all cigarettes, cigars, pipes, and other
sources of ignition.
2. Use only approved gasoline containers.
3. Never remove the gas cap or add fuel with the engine
running. Allow the engine to cool before refueling.
4. Never fuel the machine indoors.
5. Never store the machine or fuel container where there
is an open flame, spark, or pilot light such as near a
water heater or other appliance.
6. Never fill containers inside a vehicle or on a truck bed
with a plastic bed liner. Always place containers on
the ground away from your vehicle before filling.
7. Remove gas-powered equipment from the truck or
trailer and refuel it on the ground. If this is not
possible, then refuel such equipment on a trailer with
a portable container, rather than from a gasoline
dispenser nozzle.
8. Keep nozzle in contact with the rim of the fuel tank or
container opening at all times until fueling is
complete. Do not use a nozzle lock-open device.
9. If fuel is spilled on clothing, change clothing
immediately.
10. Never over-fill the fuel tank. Replace gas cap and
tighten securely.
14. Replace faulty silencers/mufflers.
15. Maintain or replace safety and instruction labels as
necessary.
16. Use only authorized replacement parts when making
repairs.
17. Always comply with factory specifications on all
settings and adjustments.
18. Only authorized service locations should be utilized
for major service and repair requirements.
19. Never attempt to make major repairs on this unit
unless you have been properly trained. Improper
service procedures can result in hazardous operation,
equipment damage and voiding of manufacturer’s
warranty.
20. On multiple blade mowers, take care as rotating one
blade can cause other blades to rotate.
21. Do not change engine governor settings or over-
speed the engine. Operating the engine at excessive
speed can increase the hazard of personal injury.
22. Disengage drive attachments, stop the engine,
remove the key, and disconnect the spark plug wire(s)
before: clearing attachment blockages and chutes,
performing service work, striking an object, or if the
unit vibrates abnormally. After striking an object,
inspect the machine for damage and make repairs
before restarting and operating the equipment.
23. Never place hands near the moving parts, such as a
hydro pump cooling fan, when the tractor is running.
(Hydro pump cooling fans are typically located on top
of the transaxle).
11. Use extra care in handling gasoline and other fuels.
They are flammable and vapors are explosive.
12. If fuel is spilled, do not attempt to start the engine but
move the machine away from the area of spillage and
avoid creating any source of ignition until fuel vapors
have dissipated.
24. Units with hydraulic pumps, hoses, or motors:
WARNING: Hydraulic fluid escaping under pressure
may have sufficient force to penetrate skin and cause
serious injury. If foreign fluid is injected into the skin it
must be surgically removed within a few hours by a
doctor familiar with this form of injury or gangrene
may result. Keep body and hands away from pin
holes or nozzles that eject hydraulic fluid under high
pressure. Use paper or cardboard, and not hands, to
search for leaks. Make sure all hydraulic fluid
connections are tight and all hydraulic hoses and
lines are in good condition before applying pressure
to the system. If leaks occur, have the unit serviced
immediately by your authorized service center.
25. WARNING: Stored energy device. Improper release
of springs can result in serious personal injury.
Springs should be removed by an authorized
technician.
13. Replace all fuel tank caps and fuel container caps
securely.
Service & Maintenance
1. Never run the unit in an enclosed area where carbon
monoxide fumes may collect.
2. Keep nuts and bolts, especially blade attachment
bolts, tight and keep equipment in good condition.
3. Never tamper with safety devices. Check their proper
operation regularly and make necessary repairs if
they are not functioning properly.
4. Keep unit free of grass, leaves, or other debris build-
up. Clean up oil or fuel spillage. and remove any fuel-
soaked debris. Allow machine to cool before storage.
5. If you strike an object, stop and inspect the machine.
Repair, if necessary, before restarting.
6. Never make adjustments or repairs with the engine
running.
7. Check grass catcher components and the discharge
guard frequently and replace with manufacturer’s
recommended parts, when necessary.
8. Mower blades are sharp. Wrap the blade or wear
gloves, and use extra caution when servicing them.
9. Check brake operation frequently. Adjust and service
as required.
10. Maintain or replace safety and instructions labels, as
necessary.
11. Do not remove the fuel filter when the engine is hot
as spilled gasoline may ignite. Do not spread fuel line
clamps further than necessary. Ensure clamps grip
hoses firmly over the filter after installation.
12. Do not use gasoline containing METHANOL, gasohol
containing more than 10% ETHANOL, gasoline
additives, or white gas because engine/fuel system
damage could result.
5
SAFETY & OPERATION DECALS
All DANGER, WARNING, CAUTION and instructional
messages on your rider and mower should be carefully
read and obeyed. Personal bodily injury can result when
these instructions are not followed. The information is for
your safety and it is important! The safety decals below
are on your rider and mower.
This unit has been designed and manufactured to
provide you with the safety and reliability you would
expect from an industry leader in outdoor power
equipment manufacturing.
Although reading this manual and the safety instructions
it contains will provide you with the necessary basic
knowledge to operate this equipment safely and
effectively, we have placed several safety labels on the
unit to remind you of this important information while you
are operating your unit.
If any of these decals are lost or damaged, replace them
at once. Contact your dealer for replacements.
These labels are easily applied and will act as a constant
visual reminder to you, and others who may use the
equipment, to follow the safety instructions necessary for
safe, effective operation.
Decal - Control Panel
Part No. 1734534
Decal - Cutting Height
Switch
Part No. 1734538
Decal - Amputation and
Thrown Objects Hazard
Part No. 1720389
1734538
1734534
1734532
Decal - Transmission
Release
Part No. 1734532
(Located on rear frame)
4
3
2
1734527
Decal - Operation
Part No. 1734527
1
1734539
Decal - Amputation Hazard
Part No. 1720389
Decal - Cutting Height
Indicator
Part No. 1734539
6
IDENTIFICATION NUMBERS
ID Tag
When contacting the service center for replacement
parts, service, or information you MUST have these
numbers.
Record your model name/number, manufacturer’s
identification numbers, and engine serial numbers in the
space provided for easy access.
The identification tag is located on the underside of the
seat. Tilt the seat forward to access the ID tag.
PRODUCT REFERENCE DATA
Model Description Name/Number
Part Number
Unit Serial Number
Date Purchased
ENGINE REFERENCE DATA
Engine Make
Engine Model
Engine Type/Spec
Engine Code/Serial Number
7
OPERATION
Right
Left
Ground Speed &
Parking Brake
Lever
Ground Speed
Control Lever
Mower
Cutting
Height
Switch
Ground Speed Levers - Ground Speed Levers -
Choke
DRIVE Positons
START/PARK Positons
(Closed)
Choke
(Open)
Fuel Tank
Cap
Engine
Speed
(Fast)
Engine
Speed
(Slow)
CONTROL FUNCTIONS
RUN
START
OFF
The information below briefly describes the
function of individual controls. Starting,
stopping, driving, and mowing require the
combined use of several controls applied in
specific sequences. To learn what combination
and sequence of controls to use for various
tasks please read the entire section.
Transmission
Mower Blade
Switch
Release Levers
Ignition
Switch
Figure 1. Controls
Ground Speed Levers /
Parking Brake
These levers control the ground speed and parking brake
of the rider. The left lever controls the left rear drive
wheel and the right lever controls the right rear drive
wheel and parking brake.
Engine Speed Control
The engine speed control adjusts engine speed. Always
set the engine speed to FAST for driving and mowing.
Move the engine speed control back to SLOW to
decrease engine speed. NEVER turn on the mower
blades with the engine speed set to SLOW. Only turn on
the mower blades with the engine speed set to FAST.
Pushing the levers out to the side, away from the
operator’s lap, locks the parking brake in PARK position
(inset, Figure 1). This is the proper position for starting
the rider. Pulling the levers in across the operator’s lap
puts the levers in DRIVE positions.
Choke
CLOSE the choke for cold starting (pull knob up). OPEN
the choke once the engine starts (push knob down). If
the engine is warm, it may not require choking. If this is
the case, set the choke to OPEN (push the knob down)
while cranking the engine. In most cases, you will need
to close the choke in order to start the engine.
From DRIVE position, moving a lever forward increases
the FORWARD speed of the associated wheel. Pulling
back on a lever increases the REVERSE speed. The
further a lever is pushed, the faster the drive wheel will
turn.
See DRIVING PRACTICE for steering instructions.
8
Mower Cutting Height Switch
Mower Blade Switch
To increase the mower cutting height (raise the mower
deck), press the top of the yellow cutting height switch.
To decrease mower cutting height (lower the mower
deck), press the bottom of the switch. Mower cutting
height range is approximately 3-3/4” to 1-1/2”. The
cutting height gauge indicates the position of the mower
deck. The cutting height gauge is located on the front of
the rider, just behind the driver’s left leg.
The yellow mower blade switch turns the mower blades
on and off. To turn the mower blades ON, pull the switch
up. To turn the mower blades OFF, push the switch
down. Always set the engine speed control to FAST
before turning the mower blades ON, and while mowing.
Transmission Release Levers
The transmission release levers deactivate the
transmissions so that the unit can be pushed by hand.
See PUSHING THE UNIT BY HAND for operational
information.
Ignition Switch
The ignition switch starts and stops the engine; it has
three positions:
OFF
Stops the engine and shuts off the
electrical system.
Fuel Tank
To remove the fuel tank cap, turn it counterclockwise.
RUN Allows the engine to run and powers the
electrical system.
START Cranks the engine for starting.
NOTE: Never leave the ignition switch in the RUN
position with the engine stopped. This drains the battery.
Hour Meter
The hour meter measures the number of hours the key
has been in the RUN position.
NOTE: The hour meter will register the passage of time
when the key is in the RUN position, even if the engine is
not running.
GENERAL OPERATING SAFETY
Before first time operation:
WARNING
If you do not understand how a specific control
functions, or have not yet thoroughly read the
CONTROL FUNCTIONS section, do so now.
Do NOT attempt to operate the rider without first
becoming familiar with the location and function
of ALL controls.
• Be sure to read all information in the Safety and
Operation sections before attempting to operate this
rider and mower.
• Become familiar with all of the controls and how to stop
the unit.
• Drive in an open area without mowing to become
accustomed to driving the unit.
9
CHECKS BEFORE STARTING
• Check that the crankcase oil is filled to full mark on
dipstick (see CHECK ENGINE OIL in the
Maintenance section).
• Fill the fuel tank with fresh fuel.
FUEL RECOMMENDATIONS
For daily operation: Use only unleaded gasoline with a
pump sticker octane rating of 87 or higher. Gasohol (up
to 10% ethyl alcohol, 90% unleaded gasoline by volume)
is approved as a fuel. Methyl Teriary Butyl Ether (MTBE)
and unleaded gasoline blends (up to a maximum of 15%
MTBE by volume) are approved as a fuel. Do not use
unapproved gasolines, such as E85. Do not mix oil in
gasoline or modify the engine to run on alternate fuels.
This will damage the engine components and void the
engine warranty. Do not use fuel additives other than
fuel stabilizer.
A
Figure 2. Pre-Start Checks
A. Fuel Tank Cap
For storage: CAUTION: Alcohol blended fuels (called
gasohol or using ethanol or methanol) can attract
moisture which leads to separation and formation of
acids during storage. Acidic gas can damage the fuel
system of an engine while in storage.
WARNING
Never operate on slopes greater than 17.6 percent
(10°) which is a rise of 3-1/2 feet (106 cm)
vertically in 20 feet (607 cm) horizontally.
To avoid engine problems always use fuel stabilizer,
especially before storage of 30 days or longer. Use fresh
fuel next season. See STORAGE instructions for
additional information.
Select slow ground speed before driving onto a
slope. Use extra caution when operating on
slopes with a rear-mounted grass catcher.
Never use engine or carburetor cleaner products in the
fuel tank or permanent damage may occur. To add fuel:
Mow up and down the face of slopes, not across.
Use caution when changing directions and DO
NOT START OR STOP ON A SLOPE.
1. Remove the fuel cap (B, Figure 2).
2. Fill the tank. Do not overfill. Leave 2 inches (5 cm) of
space in the tank for fuel expansion.
WARNING - TRAILERS
3. Install and hand tighten the fuel cap.
Do not load this zero-turn rider on a trailer or
truck using two separate ramps. Only use a
single ramp that is at least one foot wider than
the width of the rear wheels of this rider. This
rider has a zero turning radius and the wheels
could fall off the ramps, or the rider could tip over
injuring the operator or bystanders.
WARNING
Never allow passengers to ride on the unit.
Before leaving the operator’s position for any
reason, engage the parking brake and disengage
the PTO. Never leave the unit unattended (i.e. out
of sight) with the engine running.
To reduce fire hazard, keep the engine, rider and
mower free of grass, leaves and excess grease.
Do not stop or park rider over dry leaves, grass or
combustible materials.
Gasoline is highly flammable and must be
handled with care. Never fill the tank when the
engine is still hot from recent operation. Do not
allow open flame, smoking or matches in the area.
Avoid over-filling and wipe up any spills.
10
EMERGENCY STOPPING
PUSHING THE RIDER BY HAND
In the event of an emergency the engine can be stopped
by simply turning the ignition switch to STOP. Use this
method only in emergency situations. For normal engine
shut down follow the procedure given in STOPPING THE
RIDER AND ENGINE.
NOTE: Do not disengage the transmissions if parked on
a slope.
1. Turn the mower blades OFF, push the ground speed
control levers out to their START/PARK positions, turn
the ignition switch OFF, remove the key, and wait for
all moving parts to stop.
STOPPING THE RIDER & ENGINE
1. Return the ground speed control levers to
START/PARK positions to stop rider movement and
engage the parking brake.
2. Locate the transmission release levers (C, Figure 3)
at the rear of the unit.
3. Pull both levers back and down to release the
transmissions (position B, Figure 3).
2. Turn off the mower blades by pushing the mower
blade switch down to the OFF position.
4. Pull the ground speed control levers in to their DRIVE
positions.
3. Move the engine speed control to SLOW position and
turn the ignition switch to OFF. Remove the key.
The rider can now be pushed by hand.
5. After moving the rider, set the ground speed control
levers to START/PARK and push both transmission
release levers forward to re-engage the transmissions
(position A, Figure 3).
STARTING THE ENGINE
1. While sitting in the seat, make sure the mower blade
switch is OFF and the ground speed control levers
are locked in START/PARK positions.
DO NOT TOW RIDER
2. Move the engine speed control fully forward to FAST.
Set the choke control to CLOSED (pull knob UP).
Towing the unit will cause transmission
damage. Do not use another vehicle to push
or pull this unit. Do not use this unit to push
or pull another vehicle or object.
NOTE: A warm engine may not require choking. In this
case, set the choke control to OPEN (push knob down).
3. Insert the key into the ignition switch and turn it to
START to crank the engine.
4. After the engine starts, release the key. It will return
to the RUN position. Gradually push the choke knob
down to OPEN position. Warm the engine by running
it for at least a minute before turning on the mower
blades, or driving the unit.
A
ALWAYS operate the unit with the engine speed
control set to FAST when mowing or driving.
NEVER engage the mower blades with the engine
speed set to SLOW.
MOWING
1. Start the engine (see STARTING THE ENGINE).
B
2. Set the mower cutting height to the desired setting
using the mower cutting height switch.
3. Set the engine speed control to FAST.
4. Turn the mower blades ON (pull switch up).
C
5. Move the ground speed control levers in from
START/PARK positions to drive positions (levers in
across the operator’s lap).
Figure 3. Transmission Release Levers
A. Drive Position
B. Push Position
7. Begin mowing. See DRIVING PRACTICE.
C.Transmission Release Levers
8. When finished, turn the mower blades OFF (push
switch down).
9. Stop the rider and engine (see STOPPING THE
RIDER AND ENGINE).
11
Smooth Travel
DRIVING PRACTICE -
BASIC DRIVING
The lever controls of the
zero turn rider are
WARNING: Never operate on slopes greater than 17.6%
(10°). See SLOPE OPERATION in the safety section.
Zero turn riders operate differently from other four-
wheeled vehicles. The drive wheels are also your
steering wheels. If you cannot drive the unit on a hill, you
will not be able to steer the unit on it. Operating zero
turn units on slopes requires extra caution.
highly responsive.
The BEST method of
handling the ground
speed control levers is in
three steps — as shown
in Figure 4.
FIRST place your hands
onto the levers as
shown.
The lever controls of the zero turn rider are very
responsive, and learning to gain a smooth and efficient
control of the rider’s forward, reverse, and turning
movements will take some practice.
SECOND, to go forward
gradually push the levers
forward with your palms.
Spend some time going through the following maneuvers
and becoming familiar with how the unit accelerates,
travels, and steers — before you begin mowing —is
absolutely essential to getting the most out of the zero
turn rider.
THIRD, to speed up
move the levers farther
forward. To slow down
smoothly, slowly move
the levers back toward
neutral.
Avoid turf damage! To avoid turf damage, keep both
drive wheels moving while executing turns. Pivoting on
one wheel, or dragging a wheel through a turn will
damage your lawn.
Figure 4. Move Control
Levers Gradually
Locate a smooth, flat area of your lawn — one with
plenty of room to maneuver. (Clear the area of objects,
people and animals before you begin.) Operate the unit
at mid-throttle during this practice session (ALWAYS
operate at full throttle when mowing), and turn slowly to
prevent tire slippage and damage to your lawn.
Forward Travel Practice
Gradually move both ground speed control levers evenly
FORWARD from neutral. Slow down and repeat.
Reverse Travel Practice
We suggest you begin with the Smooth Travel procedure
to the right, and then advance through the forward,
reverse, and turning maneuvers.
LOOK DOWN & BEHIND, then gradually move both
ground speed control levers evenly BACK from neutral.
Slow down and repeat.
WARNING
Do not mow in reverse unless absolutely
necessary. Always look down and behind before
and while traveling in reverse.
NOTE: Practice backing up for several minutes before
attempting to do so near objects. The rider turns as
sharply in reverse as when going forward, and backing
up straight takes practice.
Reverse Travel
Forward Travel
Figure 5. Forward Travel
Figure 6. Reverse Travel
12
Practice Turning Around a Corner
Practice Turning In Place
While traveling forward allow one handle to gradually
return back toward neutral. Practice several times before
mowing.
To “zero turn” means to turn in place. To turn in place,
gradually move one ground speed control lever forward
from neutral and one lever back from neutral
simultaneously. Repeat several times.
NOTE: To prevent damaging your lawn by pivoting
directly on the tire tread, it is best to keep both wheels
going at least slightly forward.
Turning In Place
Executing Turns
Figure 7. Right Turn
Figure 8. Turning in Place
ADVANCED DRIVING
Executing an End-Of-Row Zero Turn
Your zero turn rider’s unique ability to turn in
place allows you to turn around at the end of a
cutting row rather than having to stop and make
a Y-turn before starting a new row.
For example, to execute a right end-of row zero
turn:
1. Slow down at the end of the row.
2. Move the LEFT ground speed control lever
forward slightly while moving the RIGHT
ground speed control lever back to center
and then slightly back from center. Be sure
to keep both wheels moving to avoid turf
damage.
3. Begin mowing forward again.
This technique turns the rider RIGHT and
slightly overlaps the row just cut —eliminating
the need to back up and re-cut missed grass.
As you become more familiar and experienced
with operating the zero turn rider, you will learn
more maneuvers that will make your mowing
time easier and more enjoyable.
Remember, the more you practice, the better
your control of the rider will be!
Figure 9. Executing an End-Of-Row Turn
13
MOWER DECK REMOVAL &
INSTALLATION
NOTE: Perform mower removal and installation on a
hard, level surface such as a concrete floor.
B
C
A
WARNING
After lowering the mower cutting height, engage
parking brake, turn off the mower blades, turn the
ignition switch to STOP, and remove key before
attempting to install or remove the mower.
D
Removing the Mower Deck
1. Turn the mower blades OFF, put the ground speed
control levers in START/PARK position, turn the
ignition OFF, and wait for all moving parts to stop.
2. Pivot the front wheels forward.
3. Use the mower belt release lever (D, Figure 11) to
release belt tension. Remove the mower belt from
engine pulley (A).
4. Turn the ignition switch from OFF to RUN without
starting the engine.
Figure 10. Mower Hitch Components
A. Hair Pin Clip
B. 3/8-16 x 3/4 Carriage Bolt & Flange Nut
C. Hitch Rod
D. 4x4 Wood Blocks
5. Use the mower cutting height switch to raise the
mower deck.
6. Place 4x4 wood blocks (D, Figure 10) under the front
and rear lip of the mower deck to securely support it.
7. Use the mower cutting height switch to fully lower the
mower so that is it resting on the 4x4 wood blocks.
8. Turn the ignition switch to OFF and remove the key.
9. Remove the hair pin clip (A) securing the rear mower
lift arm. Separate the lift arm from the mower deck.
Repeat on both sides of the mower.
B
A
C
C
10. Remove the hitch rod (C) from the hitch bracket.
11. Slide the mower deck out from under the rider.
E
Installing the Mower Deck
D
E
1. Slide the mower deck under the right side of the rider.
Slide the mower forward and hook the front hitch rod
(C, Figure 10) to the front mower deck hooks.
2. Slide the mower deck backwards and connect the
rear lift arms to the mower deck. Secure with hair pin
clips (A).
3. Insert the key into the ignition switch. Turn the switch
from OFF to RUN without starting the engine.
4. Use the cutting height switch to raise the mower until
it is no longer resting on the 4x4 wood blocks (D).
5. Turn the ignition switch OFF and remove the key.
Remove the 4x4 blocks (D).
Figure 11. Mower Belt Routing
A. Engine Pulley
B. Mower Drive Belt
C. Back-Side Idler Pulleys
D. Mower Belt Release Lever
E. Arbor Pulleys
6. Use the mower belt release lever to release mower
belt tension, and install the belt as shown in Figure
11.
14
MAINTENANCE
MAINTENANCE SCHEDULE
The following schedules should be followed for normal care of your rider and mower.
Before
Spring
8
25
100
200
Yearly
RIDER MAINTENANCE, All Models
Each Use & Fall Hours Hours Hours Hours
Clean Debris from Rider and Engine Compartment *
Clean Debris from Engine Cooling Areas & Air Filter *
Check Tire Pressure
•
•
•
•
•
•
Lubricate Rider & Mower *
Clean Deck & Check/Replace Mower Blades
Clean Battery & Cables
Check Rider Safety System **
•
•
•
Check / Adjust PTO Clutch
•
8 Hours or
Daily
25 Hours or 50 Hours or 100 Hours or Yearly
ENGINE MAINTENANCE,
20HP Briggs & Stratton
Every
Every
Every
Season
Season
Season
Check Engine Oil Level *
Service Air Pre-Cleaner *
Change Oil *
•
•
•
•
Service Air Filter *
Change Oil & Filter *
Clean Cooling Fins *
Replace Air Filter *
Replace Spark Plug
Replace Fuel Filter †
Check Valve Clearance †
•
•
•
•
•
•
* More often in hot (over 85° F: 30° C) weather or dusty operating conditions.
** Check the function of the safety system after the unit has been stored for 30 days or longer.
† These services should be performed by your dealer.
15
Rider Maintenance Items
WARNING
Move the ground speed levers to START/PARK
positions, turn the mower blades OFF, turn the
ignition switch OFF, and wait for all moving parts
to stop before accessing the engine compartment
or performing any maintenance procedures.
ACCESSING THE ENGINE
COMPARTMENT
Lift up on the back edge of the seat deck to access the
engine compartment.
Figure 12. Accessing the Engine Compartment
A
B
CLEAN DEBRIS FROM RIDER AND
ENGINE COMPARTMENT
Service Interval: Before each use.
CAUTION: If debris is not removed from the engine
compartment and other hot surfaces, it creates a fire
hazard. Before starting the unit at the beginning of the
mowing session, remove any grass clippings, dirt,
leaves, or other debris from the unit. Also clean out the
engine compartment.
CLEAN DEBRIS FROM ENGINE
COOLING AREAS AND AIR FILTER
Service Interval: Before each use.
CAUTION: If debris is not removed from the engine
compartment and other hot surfaces, it creates a fire
hazard. Before starting the unit at the beginning of the
mowing session, lift the seat deck and clean any debris
from the intake screen on top of the engine (A, Figure
13), exposed engine cooling fins, and around the air filter
assembly. Also open the air filter cover (B) and remove
any debris that has accumulated in the air filter
compartment.
Figure 13. Engine Compartment
A. Intake Screen
B. Air Filter Cover
CHECK TIRE PRESSURE
Service Interval: 25 Hours.
Tire
Front
Rear
Pressure
Tire pressure should be checked periodically, and
maintained at the levels shown in Figure 14. Note that
these pressures may differ slightly from the “Max
Inflation” stamped on the side-wall of the tires. The
pressures shown provide proper traction, improve cut
quality, and extend tire life.
18-20 psi (1,24-1,38 bar)
10-12 psi (,69-,83 bar)
Figure 14. Tire Pressures
16
LUBRICATION
Service Interval: 25 hours.
Lubricate the unit at the locations shown in Figures 15
through 19 as well as the following lubrication points.
Grease:
• front wheel grease fittings
• front wheel bushings
• mower pivots
• mower arbors
Use grease fittings when present.
Not all greases are compatible. Use automotive-type
lithium grease.
Oil:
• hydro linkage
• brake linkage
• mower deck height adjustment linkage
• ground speed control linkage
Generally, all moving metal parts should be oiled where
contact is made with other parts. Keep oil and grease off
belts and pulleys. Remember to wipe fittings and
surfaces clean both before and after lubrication.
Figure 17. Lubricating Rider
Figure 18. Lubricating Rider
Figure 15. Mower Lubrication
Figure 19. Lubricating Mower Lift
Figure 16. Arbor Lubrication (3-Blade Model Shown)
17
CLEAN DECK &
CHECK / REPLACE MOWER BLADES
Service Interval: 25 hours or as required.
WARNING
For your personal safety, do not handle the sharp
mower blades with bare hands. Careless or
improper handling of blades may result in serious
injury.
LOOSEN
WARNING
For your personal safety, blade mounting
capscrews must each be installed with two spring
washers or a hex washer and spring washer, then
securely tightened.Torque blade mounting nut to
80 - 90 ft. lbs. (108 - 122 Nm).
Figure 20. Blade Removal
Workbench
1. Remove mower deck (see “Mower Deck Removal” in
the OPERATION section).
2. See Figure 20. Remove blade to inspect it or to
safely access the underside of the mower deck. Use
a block of wood to prevent blade rotation while
loosening the capscrew by turning it
Nail
counterclockwise.
Figure 21. Balancing The Blade
3. Remove the capscrew (D, Figure 22), spring washer
(C), hex washer (B), and blade.
4. Clean the underside of the mower deck.
5. Inspect the blades for nicks or dull edges. Use a file
to sharpen blade to a fine edge. If the blade is
damaged, it must be replaced.
6. Balance the blade as shown in Figure 21. Center the
blade’s hole on a nail lubricated with a drop of oil. A
balanced blade will remain level. If the blade is not
balanced, continue to sharpen the heavy side until it
balances.
D
A
B
C
7. Reinstall the blade with the lift wings (D, Figure 22)
pointing up toward the mower deck as shown.
8. Reinstall the spring washers (B, Figure 22) and nut
(C). Use a wooden block (A) to prevent blade rotation
while tightening the nut (C) to 80-90 ft. lbs. (108-122
Nm).
Figure 22. Blade Installation
A. 4x4 Wood Block
C. Blade Nut
D. Lift Wings
B. Spring Washers
18
CLEAN THE BATTERY AND CABLES
Service Interval: 100 Hours
CHECK RIDER SAFETY
SYSTEM
WARNING
Be careful when handling the battery. Avoid
spilling electrolyte. Keep flames and sparks away
from the battery.
Service Interval: Every 100 hours, every spring/fall,
and after storage of 30 days or longer.
When removing or installing battery cables,
disconnect the negative cable FIRST and reconnect
it LAST. If not done in this order, the positive
terminal can be shorted to the frame by a tool.
This unit is equipped with safety interlock switches.
These safety systems are present for your safety. Do
not attempt to bypass safety switches, and never
tamper with safety devices. Check their operation
regularly.
Always wear safety glasses and gloves when
handling batteries.
Operational SAFETY Checks
TEST 1 — ENGINE SHOULD NOT CRANK IF:
• Mower blades switch is ON, OR
1. Disconnect the cables from the battery, negative
cable first (B, Figure 23).
• Ground speed control levers are not in their
START/PARK positions.
2. Remove the rubber strap securing the battery, and
remove the battery.
TEST 2 — ENGINE SHOULD CRANK IF:
3. Clean the battery and battery compartment with a
solution of baking soda and water.
• Mower blade switch is OFF, AND
4. Clean the battery terminals and cable ends with a
wire brush until shiny.
• Ground speed control levers are in their
START/PARK positions.
5. Reinstall the battery and secure with the rubber strap.
TEST 3 — ENGINE SHOULD SHUT OFF IF:
6. Reattach the battery cables: first attach the positive
cable (see A, Figure 23), then attach the negative
cable (B).
• Operator rises off seat with the mower blade switch
ON, OR
• Operator rises off seat with the ground speed levers
in DRIVE positions, OR
7. Coat the cable ends and battery terminals with
petroleum jelly or non-conducting grease.
• Operator moves the left ground speed control lever
out of its START position while leaving the right
lever in START/PARK (both levers must be moved
from START to DRIVE position simultaneously to
avoid shutoff).
TEST 4 — BLADE BRAKE CHECK
The mower blades and mower drive belt should come
to a complete stop within five seconds after the mower
blade switch is turned OFF. If mower drive belt does
not stop within five seconds, contact your local
authorized dealer.
NOTE: Once the engine has stopped, the mower blade
switch must be turned OFF and the ground speed
control levers must be locked in their START/PARK
positions in order to start the engine.
B
A
WARNING
If the unit does not pass a safety test, do not
operate it. See your local authorized dealer.
Under no circumstance should you attempt to
defeat the purpose of the safety interlock
system.
Figure 23. Engine Compartment
A. Positive (+) Battery Cable
B. Negative (-) Battery Cable
19
CHECK / ADJUST PTO CLUTCH
A
B
WARNING
To avoid serious injury, perform adjustments only
with engine stopped, key removed and tractor on
level ground.
Service Interval: 200 Hours.
B
The Power Take Off (PTO) clutch drives the mower
blades. The PTO clutch is engaged and disengaged by
the mower blade switch. Check the PTO clutch
adjustment every 200 hours of operation. Also perform
the following procedure if the clutch is slipping, will not
engage, or if a new clutch has been installed.
B
Figure 24. PTO Clutch Adjustment
A. Adjustment Window (Qty. 3, one shown)
B. Adjustment Nut
1. Remove key from ignition switch and disconnect
spark plug wires to prevent the possibility of
accidental starting while the PTO is being adjusted.
B
2. See Figure 24. Note the position of the 3 adjustment
windows (A) in the side of the brake plate and the
nylock adjustment nuts (B).
A
3. Insert a .012”-.015” (2,5-4mm) feeler gauge (C)
through each window, positioning the gauge between
the rotor face and the armature face as shown in
Figure 25.
C
4. Alternately tighten the adjustment nuts (B, Figure 24)
until the rotor face and armature face just contacts
the gauge.
Figure 25. Adjust PTO Clutch
A. Window
B. Adjustment Nut
C. Feeler Gauge
5. Check the windows for an equal amount of tension
when the gauge is inserted and removed, and make
any necessary adjustments by tightening or
loosening the adjustment nuts.
NOTE: The actual air gap between the rotor and
armature may vary even after performing the adjustment
procedure. This is due to dimensional variations on
component parts, and is an acceptable condition.
6. Check the mower blade stopping time. The mower
blades and mower drive belt should come to a
complete stop within five seconds after the electric
PTO switch is turned off. If adjustment does not stop
a mower braking problem, replace the electric PTO
clutch.
20
Engine Maintenance Items
Use oil classified API Service Class SF,
SG, SH, SJ or better with SAE Viscosity:
CHECK ENGINE OIL LEVEL
Service Interval: Before each use, and every 8 hours.
30 Conventional**
5W-30
10W-30
Conventional*
1. Turn the engine off, and set the parking brake to
PARK.
2. Clean the area around the dip stick (C, Figure 27).
Synthetic 5W-30, 10W-30
3. Remove the dip stick (C) and clean it with a paper
towel.
˚F -20
-30
0
20 32 40
-7
60
16
80
27
100
38
-18
0
4
˚C
4. Insert the dip stick back into the engine. Thread the
cap back into the tube (D).
*CAUTION: Air cooled engines run hotter than automotive engines.
The use of non-synthetic multi-viscosity oils (5W-30, 10W-30, etc.)
in temperatures above 40º F (4ºC) will result in higher than normal
oil consumption. When using a multi-viscosity oil, check oil level
more frequently.
5. Remove the dip stick and read the oil level. The oil
level should be between the “FULL” and “ADD” marks
(D). If not, add oil according to the oil
**CAUTION: SAE 30 oil, if used below 40º F (4ºC), will result in hard
starting and possible engine bore damage due to inadequate
lubrication.
recommendations chart (Figure 26).
Figure 26. Recommended Engine Oil -
Briggs & Stratton Models
CHANGE ENGINE OIL
Service Interval: 50 hours or once per season.
D
Oil Capacity: Approximately 44 ounces (1.3L) without
filter change. If changing oil without changing the filter,
use the engine oil dip stick to determine oil level.
B
A
NOTE: Change engine oil while the engine is warm. Run
the engine for a few minutes, then shut the engine off
and allow it to cool from hot to warm.
1. Clean the area around the dip stick (C, Figure 27)
and oil drain tube (A).
2. Remove the oil drain plug (A) from the end of the oil
drain tube. Remove the dip stick (C). Allow ample
time for complete drainage.
3. Reinstall the oil drain plug (A) and route the hose
next to the engine.
C
4. Fill the crankcase with oil. See CHECK ENGINE OIL
LEVEL above.
5. Start and run the engine at SLOW speed for 30
seconds. Stop the engine and recheck the oil level.
Figure 27. Oil Change - Briggs & Stratton Models
A. Oil Drain Tube
B. Oil Filter
C. Dip Stick
D. Checking Oil Level
CHANGE ENGINE OIL & FILTER
Service Interval: 100 hours or once per season.
Oil Capacity: 48 ounces (1.42L) with oil filter change.
6. Turn the filter clockwise until the rubber gasket meets
the filter base. Then turn 1/2 to 3/4 turn more.
NOTE: Change engine oil while the engine is warm. Run
the engine for a few minutes, then shut the engine off
and allow it to cool from hot to warm.
7. Reinstall the oil drain plug (A).
8. Fill the crankcase with oil. See CHECK ENGINE OIL
LEVEL above.
1. Clean the area around the dip stick (C, Figure 27)
and oil drain (A).
9. Start and run the engine at SLOW speed for 30
seconds. Stop the engine and recheck the oil level.
2. Remove the oil drain plug (A) and dip stick (C). Allow
ample time for complete drainage.
10. Test run the engine to check for leaks. Stop the
engine for 1 minute, then recheck the oil level.
3. Remove the oil filter (B). Discard the filter.
4. Using a drop of oil on your finger tip, wet the rubber
gasket on the bottom of the new filter.
21
SERVICE AIR FILTER &
PRE-CLEANER
A
Service Interval: Pre-Cleaner: Every 25 hours or as
required. Air Filter: Every 50 hours or as required.
B
Replacement Interval: Pre-Cleaner: As required. Air
Filter: Every 200 hours or once per season.
A
Air Filter Removal & Installation
B
1. Lift up on the bottom of the latch (A, Figure 28 or 29)
and flip the latch away from the cover.
1.
2. Remove the cover (B). Remove the filter (C, Figure
27) and pre-cleaner (D).
A
3. Install the pre-cleaner (D) with the mesh side up.
Install the filter (C) as shown.
2.
4. Install the cover (B, Figure 29) making sure the tabs
are inserted into their slots. Secure with the latch (A).
B
3.
Figure 28. Air Filter Assembly - Briggs & Stratton
Single Cylinder Models
A. Air Filter Latch
B. Air Filter Cover
A
C
D
B
Figure 29. Air Filter Service - Briggs & Stratton
Single Cylinder Models
A. Air Filter Latch
B. Air Filter Cover
C. Air Filter
D. Pre-Cleaner
22
Pre-Cleaner Service
Pre-Cleaner
Air Filter
NOTE: Replace a worn or damaged pre-cleaner.
1.
1.
2.
1. Figure 30. Wash the pre-cleaner in liquid detergent
and water.
2. Squeeze the pre-cleaner dry and saturate with
engine oil. Remove all excess oil by squeezing the
pre-cleaner in an absorbent cloth.
2.
Air Filter Service
NOTE: Replace a worn or damaged air filter.
1. Figure 30. If stamped “Washable,” the filter can be
washed with warm water and mild soap.
Figure 30. Air Filter Service
2. Rinse with tap water with the screen side UP allowing
dirt and debris to filter out.
3. Allow the filter to dry overnight before reinstalling.
REPLACE SPARK PLUG
Service Interval: Yearly
Replacement Spark Plug: 5066
Spark Plug Gap: .030” (.76mm)
1. Stop the engine and allow it to cool.
2. Clean the area around the spark plug.
3. Remove the spark plug.
4. Check the spark plug gap. It should be .030” (see
Figure 31).
5. Reinstall the plug into the cylinder head. Torque the
plug to 180 in. lbs (20 N.m.).
Figure 31. Spark Plug Gapping
23
SERVICE & ADJUSTMENTS
GROUND SPEED CONTROL LEVER
ADJUSTMENT
C
The control levers have three adjustments:
To Adjust Control Lever Height: Pull the levers in
across the operator’s lap to their DRIVE positions.
Loosen the mount bolts (D, Figure 32) and raise or lower
the levers to the desired position. Tighten the mounting
bolts.(D).
A
D
To Adjust Control Lever End Gap: The control lever
end gap (C, Figure 33) should be adjusted so that the
levers do not contact each other when placed in DRIVE
positions. Loosen the jam nut (A, Figure 32) and adjust
the length of the carriage bolt (B) so that the levers do
not contact each other. Repeat on the opposite side.
Tighten the jam nut (A) to lock the carriage bolt in
position.
B
E
To Adjust Operator Clearance: The space between the
operator and the control levers can be increase by
removing the lower mounting bolt (D, Figure 32), pivoting
the lever forward, and reinstalling the capscrew through
the control lever and forward slot (C). Repeat with the
other ground speed lever.
Figure 32. Control Lever Adjustment
A. Jam Nut
B. Carriage Bolt
C. Forward Slot
D. Mount Bolts
E. Knob
SPEED BALANCING ADJUSTMENT
If the rider veers to the right or left when the ground
speed control levers are in the maximum forward
position, the top speed of the right lever can be balanced
by turning the adjustment knob (E, Figure 32). Loosen
the jam nut and turn the knob COUNTERCLOCKWISE
to increase speed or CLOCKWISE to decrease speed.
Tighten the jam nut when complete.
C
CUTTING HEIGHT ADJUSTMENT
A
To increase the mower cutting height (raise the mower
deck), press the top of the mower cutting height switch
(A, Figure 33) To decrease mower cutting height (lower
the mower deck), press the bottom of the switch. Mower
cutting height range is 3-3/4” to 1-1/2”. The cutting height
gauge indicates the position of the mower deck.. The
cutting height gauge (B) is located on the front of the
rider, just behind the driver’s left leg.
RAISE
MOWER
Cutting
ig
LOW
MOWER
ER
1734
276
4
H
ig
h
C
u
t
B
3
2
1
17
33
45
L
8
o
w
C
ut
PTO CLUTCH ADJUSTMENT
See CHECK / ADJUST PTO CLUTCH in the
Maintenance Section.
Figure 33. Cutting Height Adjustment
A. Cutting Height Adjustment Switch
B. Cutting Height Gauge
C. Control Lever End Gap
24
BRAKE ADJUSTMENT
1. Stop the unit, turn the ignition OFF, set the ground
speed levers to PARK positions, and wait for all
moving parts to stop.
3" (7.62cm)
2. Locate the brake rod (A, Figure 34) and adjustment
nut (B).
D
4. Measure the parking brake spring. Its compressed
length, with the ground speed levers in their PARK
positions should be 3” (7.62cm). Adjust the spring
length by turning the adjustment nut (B), if necessary.
A
B
BATTERY CHARGING
WARNING
Corrosion hazard.
Batteries contain acid. Always keep the
battery upright and do not spill the
electrolyte. Avoid contact with skin and
eyes.
C
Explosion hazard.
Changing the battery produces explosive
hydrogen gas. Only charge the battery in a
well ventilated area, away from any ignition
source such as a water heater, electric
motor, or a lit cigarette.
Figure 34. Brake Adjustment
A. Brake Rod
B. Adjustment Nut
C. Return Spring (Removed for Illustration Only)
D. Return Spring Hole
Wear Protective Equipment
Always wear gloves and safety glasses
when handling the battery and battery
cables.
A dead battery or one too weak to start the engine may
be the result of a defect in the charging system or other
electrical component. If there is any doubt about the
cause of the problem, contact your local dealer. If you
need to replace the battery, follow the steps under
Cleaning the Battery & Cables in the Regular
Maintenance Section.
To charge the battery, follow the instructions provided by
the battery charger manufacturer as well as all warnings
included in the safety rules sections of this book. Charge
the battery until fully charged (until the specific gravity of
the electrolyte is 1.250 or higher and the electrolyte
temperature is at least 60° F). Do not charge at a rate
higher than 10 amps.
ENGINE ADJUSTMENTS
The engine is designed to deliver the correct
performance under all operating conditions. Any
adjustments must be performed by your local authorized
dealer.
25
MOWER DECK LEVELING
ADJUSTMENTS
A
B
WARNING
Before inspecting or adjusting the mower, turn
the mower blades OFF, turn the ignition switch
OFF, and allow all moving parts to stop. Remove
ignition key, then disconnect the spark plug wire
and fasten it away from the spark plug.
C
Figure 35. Measure Blade Tips to Ground
A. Mower Deck
B. Blade Tip
Side to Side Leveling
If the cut is uneven, the mower may need leveling.
Unequal or improper tire pressure may also cause an
uneven cut. See CHECK TIRE PRESSURE.
C. Level Ground
1. With the mower installed, place the rider on a
smooth, level surface such as a concrete floor. Turn
the front wheels straight forward. Turn the engine off,
set the ground speed control levers to PARK, and
wait for all moving parts to stop.
2. Check for bent blades and replace if necessary.
3. Check the tire pressures. See CHECK TIRE
PRESSURE.
4. Set the cutting height to mid position. Arrange the
mower blades so that they are pointing from side-to-
side (Figure 36).
Figure 36. Orient Blades Side-to-Side
5. Measure the distance between the tips of the outside
blades and the ground (Figures 35 & 36). If there is
more than 1/8" (3mm) difference between the
measurements on each side, proceed to step 6. If the
difference is 1/8" (3mm) or less, proceed to Front To
Back Leveling.
B
A
6. See Figure 37. Side-to-side leveling is accomplished
using the threaded rods (A, Figure 37) and trunnion
(B) on the right and left rear sides of the mower deck.
Loosen the jam nuts (C) and adjust the nuts up or
down to adjust the mower level. When complete,
tighten the jam nuts against the trunnion to lock the
adjustment in place.
C
Figure 37. Side-to-Side Adjustment
A. Threaded Rod
B. Trunnion
C. Jam Nuts
26
C
B
A
Figure 38. Orient Blades Front-to-Back
Front To Back Leveling
If the cut is uneven, the mower may need leveling.
Unequal or improper tire pressure may also cause an
uneven cut. See CHECK TIRE PRESSURE.
Figure 39. Front-to-Back Leveling
A. Hitch Rod
B. Rear Jam Nut
1. Turn the blades front-to-back as shown in Figure 38.
Measure the distance from the ground to front tip of
center blade, and from ground to rear tips of left hand
and right hand blades (Figures 38). Front tips should
be 1/8"-1/4" (3-6 mm) higher than rear tips. If not,
proceed to step 2.
C. Front Jam Nut
2. The front mower hitch rod (A, Figure 39) is used to
adjust front-to-back leveling. To raise or lower the
front of mower deck, loosen the two rear jam nuts (B)
on both sides of the hitch rod (A). Adjust the front
jam nuts (C) on both sides of the hitch rod (A) to
adjust the deck level. When adjusted correctly,
tighten the rear jam nuts (B) to lock hitch rod in place.
MOWER BELT REPLACEMENT
E
A
WARNING
F
Before inspecting or servicing the mower, turn the
mower blades OFF, turn the ignition switch OFF,
and allow all moving parts to stop. Remove
ignition key, then disconnect the spark plug wire
and fasten it away from the spark plug.
F
B
Mower Drive Belt Replacement
1. Park the rider on a level surface. Disengage the PTO,
turn off the engine and set the ground speed control
levers to PARK. Remove the key.
C
D
Figure 40. PTO Belt Routing
A. Mower Drive Belt
B. Right Arbor Pulley
C. Idler Pulley Arm
2. Use the idler pulley arm (C, Figure 40) to release belt
tension and remove the mower drive belt (A) from the
PTO pulley (E).
D. Left Arbor Pulley
E. Engine PTO Pulley
F. Backside Idler Pulley
3. Remove the belt from the remaining deck pulleys.
Note: It is not necessary to remove the mower deck.
4. Install the new belt (A) as shown in Figure 40.
27
STORAGE
WARNING
STORAGE
Before Storage
Never store the unit (with fuel) in an enclosed,
poorly ventilated structure. Fuel vapors can
travel to an ignition source (such as a furnace,
water heater, etc.) and cause an explosion.
Before you store your unit for the off-season, read the
Maintenance and Storage instructions in the Safety
Rules section, then perform the following steps:
• Turn the mower blades OFF, set the ground speed
control levers to START / PARK, & remove the key
from the ignition switch.
Fuel vapor is also toxic to humans and animals.
• Check all fluid levels. Check all maintenance items.
• Battery life will be increased if it is removed, put in a
cool, dry place and fully charged about once a
month. If the battery is left in the unit, disconnect the
negative cable.
It is important to prevent gum deposits from forming in
the essential fuel system parts such as the carburetor,
fuel filter, fuel line, and fuel tank during storage. Also,
alcohol blended fuels (called gasohol or using ethanol or
methanol) can attract moisture which leads to the
separation and formation of acids during storage. Acidic
gas can damage the fuel system of an engine while in
storage.
To avoid engine problems use fuel stabilizer, especially
before storage of 30 days or longer.
After Storage
Before starting the unit after it has been stored:
• Check all fluid levels. Check all maintenance items.
• Fill with FRESH fuel.
• After starting, allow the engine to warm before
operating.
28
TROUBLESHOOTING
While normal care and regular maintenance will extend
WARNING
To avoid serious injury, perform maintenance on
the rider or mower only when the engine is
stopped and the ground speed levers are set to
PARK.
the life of your equipment, prolonged or constant use
may eventually require that service be performed to allow
it to continue operating properly. The troubleshooting
guide below lists the most common problems, their
causes and remedies.
If you prefer, all of these procedures can be performed
by your local authorized dealer.
Always remove the ignition key, disconnect the
spark plug wire and fasten it away from the plug
before beginning the maintenance, to prevent
accidental starting of the engine.
Troubleshooting the Rider
PROBLEM
CAUSE
REMEDY
Engine will
Ignition switch not turned fully to START position. Turn ignition switch fully to START position.
not turnover.
Ground speed levers not set to START/PARK.
Mower blade switch in ON position.
Battery terminals require cleaning.
Battery discharged or dead.
Set to START/PARK.
Place in OFF position.
Clean the battery terminals
Recharge or replace.
Wiring loose or broken; connector separated.
Visually check wiring & replace broken or frayed
wires. Tighten loose connections.
Safety interlock switch faulty.
Replace. Contact your local authorized dealer.
Replace. Contact your local authorized dealer.
Move choke to CLOSED position.
Solenoid or starter motor faulty.
Engine will
Engine is cold; choke not in CLOSED position.
Engine is warm; choke not in OPEN position.
turnover but
will not start.
Move choke to OPEN position.
Engine flooded.
Out of fuel.
Set choke to OPEN position when cranking engine.
Allow engine to cool, then refill the fuel tank.
Fuel is old or stale, or water in fuel.
Drain fuel & replace with fresh fuel. Contact your
local authorized dealer.
Spark plug(s) faulty, fouled or incorrectly gapped. Clean and gap or replace.
Safety interlock switch faulty. Replace. Contact your local authorized dealer.
Engine starts Air filter plugged
hard or runs
Service pre-cleaner and/or replace air filter
element.
poorly.
Choke not set to CLOSED position when
Set choke to CLOSED when cranking. Set choke
cranking the engine, OR choke not set to OPEN to OPEN when engine is running. A warm engine
after engine starts.
may not require choking.
Clean and gap or replace.
Check/add oil as required.
Spark plug faulty, fouled, or incorrectly gapped.
Engine
Low oil level.
knocks.
Using wrong grade oil.
See "Change Engine Oil" in the Maintenance
Section.
Excessive oil Engine running too hot.
consumption.
Clean engine cooling fins, blower screen and air
cleaner.
Using wrong weight oil.
See "Change Engine Oil" in the Maintenance
Section.
Too much oil in crankcase.
Drain excess oil.
Engine
exhaust is
black.
Dirty air filter or pre-cleaner, or both.
Service or replace as required. See Maintenance
Section.
Choke set to CLOSED when engine is running.
29
Set choke to OPEN as soon as engine starts.
Engine runs, but Transmission release levers in PUSH
Move levers to DRIVE positions.
rider will not
drive.
positions.
Drive belt slips.
Clean or replace belt as necessary.
Belt is broken.
Replace drive belt. Contact your local authorized dealer.
Contact your local authorized dealer.
Parking brake is not fully released.
Parking brake is incorrectly adjusted.
Parking brake
will not hold.
See Service & Adjustments Section.
Rider steers or
handles poorly.
Improper tire inflation.
See Maintenance Section.
Steering linkage is loose.
Check and tighten any loose connections.
Rider tracks to
one side.
Ground speed adjustment knobs not
adjusted.
See SPEED BALANCING ADJUSTMENT in Service &
Adjustments section.
Troubleshooting the Mower
PROBLEM
CAUSE
REMEDY
Mower cutting
Cutting height motor screw dirty or requires Thoroughly clean and lubricate cutting height motor
height does not lube.
screw.
adjust.
Cutting height linkage disconnected.
Check that mower linkage is connected.
See Maintenance Section.
Mower cut is
uneven.
Rider tires not inflated equally or properly.
Mower not leveled properly.
See "Mower Leveling" in Service & Adjustments.
Mower cut is
rough looking.
Engine speed too slow.
Ground speed too fast.
Blades are dull.
Always set engine speed to FAST when mowing.
Decrease ground speed.
Sharpen or replace blades. See Maintenance
Section.
Mower drive belt slipping because it is oily or Clean or replace belt as necessary.
worn.
Blades not properly fastened to arbors.
See "Check/Replace Mower Blades" in Maintenance
Section.
Engine stalls
easily with
mower engaged.
Engine speed too slow.
Ground speed too fast.
Cutting height set too low.
Always set engine speed to FAST when mowing.
Decrease Ground Speed.
Cut tall grass at maximum cutting height during first
pass.
Underside of mower deck dirty.
Remove mower deck and clean underside.
Discharge chute jamming with cut grass.
Cut grass with discharge pointing toward previously
cut area.
Excessive
mower
vibration.
Blade mounting nuts are loose.
Tighten to 80-90 ft. lbs. (108-122 N.m.).
Check and replace as necessary.
Mower blades, arbors, or pulleys are bent.
Mower blades are out of balance.
Replace or balance blades. See Maintenance
Section.
Belt installed incorrectly.
Reinstall correctly.
Mower drive belt Idler pulley spring broken or not properly
slips or fails to attached.
Repair or replace as needed.
drive.
Mower drive belt broken.
Replace drive belt.
PTO clutch out of adjustment.
Adjust PTO clutch. See Maintenance Section.
30
SPECIFICATIONS
NOTE: Specifications are correct at time of printing and are subject to change without notice.
TRANSMISSION:
ENGINE:
Make
Briggs & Stratton
Type
Hydro-Gear EZT ZC-AHBB-2A7B-1DPX
20w 50 Premium Engine Oil
115 ft. lbs.
Model
Intek
20 @ 3600 rpm
30.59 Cu. in (501cc)
12 Volt, 9 amp. Alternator, Battery: 230 CCA
44 Oz. (1.3 L) w/o filter;
48 Oz. (1.42 L) w/ filter
Hydraulic Fluid
Continuous Torque
Output
Maximum Weight
per Axle
Horsepower
Displacement
Electrical System
Oil Capacity
340 lbs
CHASSIS:
Fuel Tank Cap.
Rear Wheels
Capacity: 3.25 Gallons (12,3 L)
Tire Size: 18 x 8.5 -8
Inflation Pressure: 10-12 psi (,69-,83 bar)
Tire Size: 11 x 4-5
Front Wheels
Inflation Press.: 18-20 psi (1,24-1,30 bar)
The gross power rating for individual gas engine models is labeled in accordance with SAE (Society of Automotive Engineers)
code J1940 (Small Engine Power & Torque Rating Procedure), and rating performance has been obtained and corrected in
accordance with SAE J1995 (Revision 2002-05). Torque values are derived at 3060 RPM; horsepower values are derived at 3600
RPM. Actual gross engine power will be lower and is affected by, among other things, ambient operating conditions and engine-to-
engine variability. Given both the wide array of products on which engines are placed and the variety of environmental issues
applicable to operating the equipment, the gas engine will not develop the rated gross power when used in a given piece of power
equipment (actual "on-site" or net horsepower). This difference is due to a variety of factors including, but not limited to,
accessories (air cleaner, exhaust, charging, cooling, carburetor, fuel pump, etc.), application limitations, ambient operating
conditions (temperature, humidity, altitude), and engine-to-engine variability. Due to manufacturing and capacity limitations, Briggs
& Stratton may substitute an engine of higher rated power for this Series engine.
SERVICE ITEMS
Replacement Parts
Technical Manuals
Replacement parts are available from your authorized
dealer. Always use genuine Simplicity or Snapper
Service Parts.
Additional copies of this manual are available, as well as
fully illustrated parts lists. These manuals show all of the
product’s components in exploded views (3D illustrations
which show the relationship of parts and how they go
together) as well as part numbers and quantities used.
Important assembly notes and torque values are also
included.
Maintenance Items
Many convenient and helpful service and maintenance
items are available from you authorized dealer. Some of
these items include:
For applicable manuals currently available for your
model, contact our Customer Publications Department at
877-249-6647. Have the information listed in the box at
left available when phoning in your request. Technical
manuals can be downloaded from
Engine Oil
Tire Sealant
Touch-Up Paint
Grease Gun Kit
8 oz. Grease Tube
Degrimer/Degreaser
Gas Stabilizer
Model:
Mfg. No.:
Your Name:
Address:
City, State, Zip:
Visa/Mastercard No.:
Card Expiration Date:
31
Lawn Care
& Mowing Information
HOW TO WATER YOUR LAWN
HOW AND WHEN TO
WATER, FERTILIZE &
AERATE
Most lawns are watered too often,
but with too little water. However
too much water can allow develop-
ment of diseases with your lawn. It is
best to water the lawn only when
necessary, and then to water it
slowly, evenly, and deeply—imitat-
ing a slow, soaking rain.
The best method of watering a lawn
is to imitate a slow, soaking rain,
applying about 1 inch of water.
HOW TO FERTILIZE YOUR LAWN
Fertilizing with a slow-release fertiliz-
er provides missing nutrients which
help create slow, even growth.
Remember that over-fertilizing can
cause harm, and that most fertilizing
should be applied in the spring so
that it will release into the lawn
through the summer.
WHEN TO WATER YOUR LAWN
AERATING YOUR LAWN
When the lawn begins to wilt, the grass’s color dulls, or
footprints stay compressed for more than a few seconds,
the lawn is beginning to dry out, and needs additional
moisture. The best time to water is early morning to allow
the water to soak deeply into the lawn and reduce the
amount that evaporates in the hot afternoon sun.
Consider aerating your lawn in spring. Using an aerator
to remove cores of soil from the lawn increases the
speed of clipping decomposition and encourages deeper
root growth by opening up the soil and permitting greater
movement of water, fertilizer and air.
HOW HIGH TO MOW THE GRASS
Cut less than
Cutting the grass too short causes weak, thin
grass plants, which are easily damaged by dry
periods and pests.
1/3
Optimal
cutting point
at less than
1/3 from top
of grass blade
Letting grass grow a bit longer—especially when it
is hot and dry—reduces heat build-up, preserves
needed moisture and protects the grass from heat
damage and other problems.
Cutting down to this
area contributes to
thatch problems
Cutting off too much at one time shocks the plant’s
growth system and weakens the grass plants. A
good rule of thumb is the 1/3 rule: to cut no
more than one third of the grass height, and
never more than 1 inch at a time.
Cut Here On
First Pass
Cut
Tall Grass Requires Incremental Cutting
For extremely tall grass, set the cutting height at maxi-
mum for the first pass, and then reset it to the desired
height and mow a second or third time.
Here On
Second
Pass
Don’t cover the grass surface with a heavy layer of
clippings.
TP 600-2136-03-UV-SMA
LC-1
Lawn Care & Mowing Information
WHEN AND HOW OFTEN TO MOW
The time of day and condition of the grass greatly affect the results you’ll
get when mowing. For the best results, follow these guidelines:
G Mow when the grass is between 3”-4” (7,5-10 cm) high.
G Mow with sharp blades. Short clippings of grass one inch or shorter
decompose more quickly than longer blades. Sharp mower blades cut
grass cleanly and efficiently, preventing frayed edges which harm the
grass.
G Mow at time of day when the grass is cool and dry. Late afternoon or
early evening often provide these ideal mowing conditions.
G Avoid mowing after rain or even heavy dew, and never mulch when the
grass is wet (moist grass does not mulch well, and clumps beneath the
mower deck).
Note: Always operate the engine at full throttle when mowing.
PROPER MOWING SPEED
ENGINE SPEED & GROUND SPEED
Always operate the engine at full throttle when mowing.
If you hear the engine slowing down, you are mowing too
fast—maintaining a slower ground speed will improve the
cutting efficiency of the blades and prevents many com-
mon cutting problems.
Select an appropriate ground speed for the thickness
and height of the grass you are cutting (3rd gear or slow-
er for manual gear models, or mid-range or slower for
hydro models). If you hear the engine slowing down you
are mowing too fast, use a slower ground speed.
HOW MUCH GRASS TO CUT OFF
Mow when the grass is 3”-4” inches (7,5-10cm) long. Do
not cut off more that 1” (2.5cm) of grass in a single pass.
LC-2
PRODUCTS, INC.
535 Macon Street
McDonough, GA 30253
MANUFACTURING, INC.
500 N Spring Street / PO Box 997
Port Washington, WI 53074-0997
Briggs & Stratton Yard Power Products Group
Copyright © 2007 Briggs & Stratton Corporation
Milwaukee, WI USA. All Rights Reserved
|